A foldable silent sickbed comprises a bed board, a bed frame, a bed backrest, railings and bed legs. The bed board is divided into a first bed board body and a second bed board body, a rotating shaft is arranged at the junction of the first bed board body and the second bed board body, a first groove and a second groove are symmetrically formed in the two sides of the junction surface of the first bed board body, a first roller is arranged in the first groove, a second roller is arranged in the second groove, a third groove and a fourth groove are symmetrically formed in the two sides of the junction surface of the second bed board body, a third roller is arranged in the third groove, and a fourth roller is arranged in the fourth groove. Detachable telescopic rods are arranged on the railings on the two sides of the bed backrest. The bed legs are arranged to be of a foldable platy structure, and rotating shafts are arranged at the junctions of the bed legs and the bed board. As the bed legs are arranged to be of the foldable platy structure, the mechanical strength of the sickbed can be improved, and noise generated when a patient turns over on the sickbed or gets out of the sickbed can be reduced; meanwhile, as buffer pads are arranged on the lower portions of the bed legs, noise is further reduced.